/home/kueuepay/public_html/vendor/nette/utils/src/Utils/Html.php
<?php

/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */

declare(strict_types=1);

namespace Nette\Utils;

use Nette;
use Nette\HtmlStringable;
use function is_array, is_float, is_object, is_string;


/**
 * HTML helper.
 *
 * @property string|null $accept
 * @property string|null $accesskey
 * @property string|null $action
 * @property string|null $align
 * @property string|null $allow
 * @property string|null $alt
 * @property bool|null   $async
 * @property string|null $autocapitalize
 * @property string|null $autocomplete
 * @property bool|null   $autofocus
 * @property bool|null   $autoplay
 * @property string|null $charset
 * @property bool|null   $checked
 * @property string|null $cite
 * @property string|null $class
 * @property int|null    $cols
 * @property int|null    $colspan
 * @property string|null $content
 * @property bool|null   $contenteditable
 * @property bool|null   $controls
 * @property string|null $coords
 * @property string|null $crossorigin
 * @property string|null $data
 * @property string|null $datetime
 * @property string|null $decoding
 * @property bool|null   $default
 * @property bool|null   $defer
 * @property string|null $dir
 * @property string|null $dirname
 * @property bool|null   $disabled
 * @property bool|null   $download
 * @property string|null $draggable
 * @property string|null $dropzone
 * @property string|null $enctype
 * @property string|null $for
 * @property string|null $form
 * @property string|null $formaction
 * @property string|null $formenctype
 * @property string|null $formmethod
 * @property bool|null   $formnovalidate
 * @property string|null $formtarget
 * @property string|null $headers
 * @property int|null    $height
 * @property bool|null   $hidden
 * @property float|null  $high
 * @property string|null $href
 * @property string|null $hreflang
 * @property string|null $id
 * @property string|null $integrity
 * @property string|null $inputmode
 * @property bool|null   $ismap
 * @property string|null $itemprop
 * @property string|null $kind
 * @property string|null $label
 * @property string|null $lang
 * @property string|null $list
 * @property bool|null   $loop
 * @property float|null  $low
 * @property float|null  $max
 * @property int|null    $maxlength
 * @property int|null    $minlength
 * @property string|null $media
 * @property string|null $method
 * @property float|null  $min
 * @property bool|null   $multiple
 * @property bool|null   $muted
 * @property string|null $name
 * @property bool|null   $novalidate
 * @property bool|null   $open
 * @property float|null  $optimum
 * @property string|null $pattern
 * @property string|null $ping
 * @property string|null $placeholder
 * @property string|null $poster
 * @property string|null $preload
 * @property string|null $radiogroup
 * @property bool|null   $readonly
 * @property string|null $rel
 * @property bool|null   $required
 * @property bool|null   $reversed
 * @property int|null    $rows
 * @property int|null    $rowspan
 * @property string|null $sandbox
 * @property string|null $scope
 * @property bool|null   $selected
 * @property string|null $shape
 * @property int|null    $size
 * @property string|null $sizes
 * @property string|null $slot
 * @property int|null    $span
 * @property string|null $spellcheck
 * @property string|null $src
 * @property string|null $srcdoc
 * @property string|null $srclang
 * @property string|null $srcset
 * @property int|null    $start
 * @property float|null  $step
 * @property string|null $style
 * @property int|null    $tabindex
 * @property string|null $target
 * @property string|null $title
 * @property string|null $translate
 * @property string|null $type
 * @property string|null $usemap
 * @property string|null $value
 * @property int|null    $width
 * @property string|null $wrap
 *
 * @method self accept(?string $val)
 * @method self accesskey(?string $val, bool $state = null)
 * @method self action(?string $val)
 * @method self align(?string $val)
 * @method self allow(?string $val, bool $state = null)
 * @method self alt(?string $val)
 * @method self async(?bool $val)
 * @method self autocapitalize(?string $val)
 * @method self autocomplete(?string $val)
 * @method self autofocus(?bool $val)
 * @method self autoplay(?bool $val)
 * @method self charset(?string $val)
 * @method self checked(?bool $val)
 * @method self cite(?string $val)
 * @method self class(?string $val, bool $state = null)
 * @method self cols(?int $val)
 * @method self colspan(?int $val)
 * @method self content(?string $val)
 * @method self contenteditable(?bool $val)
 * @method self controls(?bool $val)
 * @method self coords(?string $val)
 * @method self crossorigin(?string $val)
 * @method self datetime(?string $val)
 * @method self decoding(?string $val)
 * @method self default(?bool $val)
 * @method self defer(?bool $val)
 * @method self dir(?string $val)
 * @method self dirname(?string $val)
 * @method self disabled(?bool $val)
 * @method self download(?bool $val)
 * @method self draggable(?string $val)
 * @method self dropzone(?string $val)
 * @method self enctype(?string $val)
 * @method self for(?string $val)
 * @method self form(?string $val)
 * @method self formaction(?string $val)
 * @method self formenctype(?string $val)
 * @method self formmethod(?string $val)
 * @method self formnovalidate(?bool $val)
 * @method self formtarget(?string $val)
 * @method self headers(?string $val, bool $state = null)
 * @method self height(?int $val)
 * @method self hidden(?bool $val)
 * @method self high(?float $val)
 * @method self hreflang(?string $val)
 * @method self id(?string $val)
 * @method self integrity(?string $val)
 * @method self inputmode(?string $val)
 * @method self ismap(?bool $val)
 * @method self itemprop(?string $val)
 * @method self kind(?string $val)
 * @method self label(?string $val)
 * @method self lang(?string $val)
 * @method self list(?string $val)
 * @method self loop(?bool $val)
 * @method self low(?float $val)
 * @method self max(?float $val)
 * @method self maxlength(?int $val)
 * @method self minlength(?int $val)
 * @method self media(?string $val)
 * @method self method(?string $val)
 * @method self min(?float $val)
 * @method self multiple(?bool $val)
 * @method self muted(?bool $val)
 * @method self name(?string $val)
 * @method self novalidate(?bool $val)
 * @method self open(?bool $val)
 * @method self optimum(?float $val)
 * @method self pattern(?string $val)
 * @method self ping(?string $val, bool $state = null)
 * @method self placeholder(?string $val)
 * @method self poster(?string $val)
 * @method self preload(?string $val)
 * @method self radiogroup(?string $val)
 * @method self readonly(?bool $val)
 * @method self rel(?string $val)
 * @method self required(?bool $val)
 * @method self reversed(?bool $val)
 * @method self rows(?int $val)
 * @method self rowspan(?int $val)
 * @method self sandbox(?string $val, bool $state = null)
 * @method self scope(?string $val)
 * @method self selected(?bool $val)
 * @method self shape(?string $val)
 * @method self size(?int $val)
 * @method self sizes(?string $val)
 * @method self slot(?string $val)
 * @method self span(?int $val)
 * @method self spellcheck(?string $val)
 * @method self src(?string $val)
 * @method self srcdoc(?string $val)
 * @method self srclang(?string $val)
 * @method self srcset(?string $val)
 * @method self start(?int $val)
 * @method self step(?float $val)
 * @method self style(?string $property, string $val = null)
 * @method self tabindex(?int $val)
 * @method self target(?string $val)
 * @method self title(?string $val)
 * @method self translate(?string $val)
 * @method self type(?string $val)
 * @method self usemap(?string $val)
 * @method self value(?string $val)
 * @method self width(?int $val)
 * @method self wrap(?string $val)
 */
class Html implements \ArrayAccess, \Countable, \IteratorAggregate, HtmlStringable
{
	use Nette\SmartObject;

	/** @var array<string, mixed>  element's attributes */
	public $attrs = [];

	/** void elements */
	public static $emptyElements = [
		'img' => 1, 'hr' => 1, 'br' => 1, 'input' => 1, 'meta' => 1, 'area' => 1, 'embed' => 1, 'keygen' => 1,
		'source' => 1, 'base' => 1, 'col' => 1, 'link' => 1, 'param' => 1, 'basefont' => 1, 'frame' => 1,
		'isindex' => 1, 'wbr' => 1, 'command' => 1, 'track' => 1,
	];

	/** @var array<int, HtmlStringable|string> nodes */
	protected $children = [];

	/** element's name */
	private string $name = '';

	private bool $isEmpty = false;


	/**
	 * Constructs new HTML element.
	 * @param  array|string $attrs element's attributes or plain text content
	 */
	public static function el(?string $name = null, array|string|null $attrs = null): static
	{
		$el = new static;
		$parts = explode(' ', (string) $name, 2);
		$el->setName($parts[0]);

		if (is_array($attrs)) {
			$el->attrs = $attrs;

		} elseif ($attrs !== null) {
			$el->setText($attrs);
		}

		if (isset($parts[1])) {
			foreach (Strings::matchAll($parts[1] . ' ', '#([a-z0-9:-]+)(?:=(["\'])?(.*?)(?(2)\2|\s))?#i') as $m) {
				$el->attrs[$m[1]] = $m[3] ?? true;
			}
		}

		return $el;
	}


	/**
	 * Returns an object representing HTML text.
	 */
	public static function fromHtml(string $html): static
	{
		return (new static)->setHtml($html);
	}


	/**
	 * Returns an object representing plain text.
	 */
	public static function fromText(string $text): static
	{
		return (new static)->setText($text);
	}


	/**
	 * Converts to HTML.
	 */
	final public function toHtml(): string
	{
		return $this->render();
	}


	/**
	 * Converts to plain text.
	 */
	final public function toText(): string
	{
		return $this->getText();
	}


	/**
	 * Converts given HTML code to plain text.
	 */
	public static function htmlToText(string $html): string
	{
		return html_entity_decode(strip_tags($html), ENT_QUOTES | ENT_HTML5, 'UTF-8');
	}


	/**
	 * Changes element's name.
	 */
	final public function setName(string $name, ?bool $isEmpty = null): static
	{
		$this->name = $name;
		$this->isEmpty = $isEmpty ?? isset(static::$emptyElements[$name]);
		return $this;
	}


	/**
	 * Returns element's name.
	 */
	final public function getName(): string
	{
		return $this->name;
	}


	/**
	 * Is element empty?
	 */
	final public function isEmpty(): bool
	{
		return $this->isEmpty;
	}


	/**
	 * Sets multiple attributes.
	 */
	public function addAttributes(array $attrs): static
	{
		$this->attrs = array_merge($this->attrs, $attrs);
		return $this;
	}


	/**
	 * Appends value to element's attribute.
	 */
	public function appendAttribute(string $name, mixed $value, mixed $option = true): static
	{
		if (is_array($value)) {
			$prev = isset($this->attrs[$name]) ? (array) $this->attrs[$name] : [];
			$this->attrs[$name] = $value + $prev;

		} elseif ((string) $value === '') {
			$tmp = &$this->attrs[$name]; // appending empty value? -> ignore, but ensure it exists

		} elseif (!isset($this->attrs[$name]) || is_array($this->attrs[$name])) { // needs array
			$this->attrs[$name][$value] = $option;

		} else {
			$this->attrs[$name] = [$this->attrs[$name] => true, $value => $option];
		}

		return $this;
	}


	/**
	 * Sets element's attribute.
	 */
	public function setAttribute(string $name, mixed $value): static
	{
		$this->attrs[$name] = $value;
		return $this;
	}


	/**
	 * Returns element's attribute.
	 */
	public function getAttribute(string $name): mixed
	{
		return $this->attrs[$name] ?? null;
	}


	/**
	 * Unsets element's attribute.
	 */
	public function removeAttribute(string $name): static
	{
		unset($this->attrs[$name]);
		return $this;
	}


	/**
	 * Unsets element's attributes.
	 */
	public function removeAttributes(array $attributes): static
	{
		foreach ($attributes as $name) {
			unset($this->attrs[$name]);
		}

		return $this;
	}


	/**
	 * Overloaded setter for element's attribute.
	 */
	final public function __set(string $name, mixed $value): void
	{
		$this->attrs[$name] = $value;
	}


	/**
	 * Overloaded getter for element's attribute.
	 */
	final public function &__get(string $name): mixed
	{
		return $this->attrs[$name];
	}


	/**
	 * Overloaded tester for element's attribute.
	 */
	final public function __isset(string $name): bool
	{
		return isset($this->attrs[$name]);
	}


	/**
	 * Overloaded unsetter for element's attribute.
	 */
	final public function __unset(string $name): void
	{
		unset($this->attrs[$name]);
	}


	/**
	 * Overloaded setter for element's attribute.
	 */
	final public function __call(string $m, array $args): mixed
	{
		$p = substr($m, 0, 3);
		if ($p === 'get' || $p === 'set' || $p === 'add') {
			$m = substr($m, 3);
			$m[0] = $m[0] | "\x20";
			if ($p === 'get') {
				return $this->attrs[$m] ?? null;

			} elseif ($p === 'add') {
				$args[] = true;
			}
		}

		if (count($args) === 0) { // invalid

		} elseif (count($args) === 1) { // set
			$this->attrs[$m] = $args[0];

		} else { // add
			$this->appendAttribute($m, $args[0], $args[1]);
		}

		return $this;
	}


	/**
	 * Special setter for element's attribute.
	 */
	final public function href(string $path, array $query = []): static
	{
		if ($query) {
			$query = http_build_query($query, '', '&');
			if ($query !== '') {
				$path .= '?' . $query;
			}
		}

		$this->attrs['href'] = $path;
		return $this;
	}


	/**
	 * Setter for data-* attributes. Booleans are converted to 'true' resp. 'false'.
	 */
	public function data(string $name, mixed $value = null): static
	{
		if (func_num_args() === 1) {
			$this->attrs['data'] = $name;
		} else {
			$this->attrs["data-$name"] = is_bool($value)
				? json_encode($value)
				: $value;
		}

		return $this;
	}


	/**
	 * Sets element's HTML content.
	 */
	final public function setHtml(mixed $html): static
	{
		$this->children = [(string) $html];
		return $this;
	}


	/**
	 * Returns element's HTML content.
	 */
	final public function getHtml(): string
	{
		return implode('', $this->children);
	}


	/**
	 * Sets element's textual content.
	 */
	final public function setText(mixed $text): static
	{
		if (!$text instanceof HtmlStringable) {
			$text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8');
		}

		$this->children = [(string) $text];
		return $this;
	}


	/**
	 * Returns element's textual content.
	 */
	final public function getText(): string
	{
		return self::htmlToText($this->getHtml());
	}


	/**
	 * Adds new element's child.
	 */
	final public function addHtml(mixed $child): static
	{
		return $this->insert(null, $child);
	}


	/**
	 * Appends plain-text string to element content.
	 */
	public function addText(mixed $text): static
	{
		if (!$text instanceof HtmlStringable) {
			$text = htmlspecialchars((string) $text, ENT_NOQUOTES, 'UTF-8');
		}

		return $this->insert(null, $text);
	}


	/**
	 * Creates and adds a new Html child.
	 */
	final public function create(string $name, array|string|null $attrs = null): static
	{
		$this->insert(null, $child = static::el($name, $attrs));
		return $child;
	}


	/**
	 * Inserts child node.
	 */
	public function insert(?int $index, HtmlStringable|string $child, bool $replace = false): static
	{
		$child = $child instanceof self ? $child : (string) $child;
		if ($index === null) { // append
			$this->children[] = $child;

		} else { // insert or replace
			array_splice($this->children, $index, $replace ? 1 : 0, [$child]);
		}

		return $this;
	}


	/**
	 * Inserts (replaces) child node (\ArrayAccess implementation).
	 * @param  int|null  $index  position or null for appending
	 * @param  Html|string  $child  Html node or raw HTML string
	 */
	final public function offsetSet($index, $child): void
	{
		$this->insert($index, $child, replace: true);
	}


	/**
	 * Returns child node (\ArrayAccess implementation).
	 * @param  int  $index
	 */
	final public function offsetGet($index): HtmlStringable|string
	{
		return $this->children[$index];
	}


	/**
	 * Exists child node? (\ArrayAccess implementation).
	 * @param  int  $index
	 */
	final public function offsetExists($index): bool
	{
		return isset($this->children[$index]);
	}


	/**
	 * Removes child node (\ArrayAccess implementation).
	 * @param  int  $index
	 */
	public function offsetUnset($index): void
	{
		if (isset($this->children[$index])) {
			array_splice($this->children, $index, 1);
		}
	}


	/**
	 * Returns children count.
	 */
	final public function count(): int
	{
		return count($this->children);
	}


	/**
	 * Removes all children.
	 */
	public function removeChildren(): void
	{
		$this->children = [];
	}


	/**
	 * Iterates over elements.
	 * @return \ArrayIterator<int, HtmlStringable|string>
	 */
	final public function getIterator(): \ArrayIterator
	{
		return new \ArrayIterator($this->children);
	}


	/**
	 * Returns all children.
	 */
	final public function getChildren(): array
	{
		return $this->children;
	}


	/**
	 * Renders element's start tag, content and end tag.
	 */
	final public function render(?int $indent = null): string
	{
		$s = $this->startTag();

		if (!$this->isEmpty) {
			// add content
			if ($indent !== null) {
				$indent++;
			}

			foreach ($this->children as $child) {
				if ($child instanceof self) {
					$s .= $child->render($indent);
				} else {
					$s .= $child;
				}
			}

			// add end tag
			$s .= $this->endTag();
		}

		if ($indent !== null) {
			return "\n" . str_repeat("\t", $indent - 1) . $s . "\n" . str_repeat("\t", max(0, $indent - 2));
		}

		return $s;
	}


	final public function __toString(): string
	{
		return $this->render();
	}


	/**
	 * Returns element's start tag.
	 */
	final public function startTag(): string
	{
		return $this->name
			? '<' . $this->name . $this->attributes() . '>'
			: '';
	}


	/**
	 * Returns element's end tag.
	 */
	final public function endTag(): string
	{
		return $this->name && !$this->isEmpty ? '</' . $this->name . '>' : '';
	}


	/**
	 * Returns element's attributes.
	 * @internal
	 */
	final public function attributes(): string
	{
		if (!is_array($this->attrs)) {
			return '';
		}

		$s = '';
		$attrs = $this->attrs;
		foreach ($attrs as $key => $value) {
			if ($value === null || $value === false) {
				continue;

			} elseif ($value === true) {
				$s .= ' ' . $key;

				continue;

			} elseif (is_array($value)) {
				if (strncmp($key, 'data-', 5) === 0) {
					$value = Json::encode($value);

				} else {
					$tmp = null;
					foreach ($value as $k => $v) {
						if ($v != null) { // intentionally ==, skip nulls & empty string
							// composite 'style' vs. 'others'
							$tmp[] = $v === true
								? $k
								: (is_string($k) ? $k . ':' . $v : $v);
						}
					}

					if ($tmp === null) {
						continue;
					}

					$value = implode($key === 'style' || !strncmp($key, 'on', 2) ? ';' : ' ', $tmp);
				}
			} elseif (is_float($value)) {
				$value = rtrim(rtrim(number_format($value, 10, '.', ''), '0'), '.');

			} else {
				$value = (string) $value;
			}

			$q = str_contains($value, '"') ? "'" : '"';
			$s .= ' ' . $key . '=' . $q
				. str_replace(
					['&', $q, '<'],
					['&amp;', $q === '"' ? '&quot;' : '&#39;', '<'],
					$value,
				)
				. (str_contains($value, '`') && strpbrk($value, ' <>"\'') === false ? ' ' : '')
				. $q;
		}

		$s = str_replace('@', '&#64;', $s);
		return $s;
	}


	/**
	 * Clones all children too.
	 */
	public function __clone()
	{
		foreach ($this->children as $key => $value) {
			if (is_object($value)) {
				$this->children[$key] = clone $value;
			}
		}
	}
}
Kueue Pay | Contactless Payment System
top

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"I love how NFC Pay prioritizes security without compromising on convenience. The two-factor authentication and instant alerts give me peace of mind every time I use it."

"Setting up my merchant account was a breeze, and now I can accept payments effortlessly. NFC Pay has truly streamlined my operations, saving me time and hassle."

Get the NFC Pay App for Seamless Transactions Anytime, Anywhere

Unlock the full potential of NFC Pay by downloading our app, designed to bring secure, swift, and smart transactions to your fingertips. Whether you're paying at a store, transferring money to friends, or managing your business payments, the NFC Pay app makes it effortless. Available on both iOS and Android, it's your all-in-one solution for convenient and reliable digital payments. Download now and experience the future of payments!

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